If you've ever realized the beautiful and bizzare reality around you is just a dream, then you've experienced the space between. It exists alongside the mortal plane, echoing its features in a distorted dream-like manner.
Two methods of travel can get you to the space between. Some talented dreamers project their consciousness there whenever they choose. Physical travel is also possible, but perilous.
The Confluence is the wellspring of magic that flows throughout Driezeil. All magic in the world originates from the Confluence and eventually returns there.
Scholars have compared the confluence with the water cycle and circulatory systems, but neither captures the truth.